iRay Box Lights problem
Super cheese sandwich
Posts: 633
in The Commons
Hi! I recently bought a iRay lights pack http://www.daz3d.com/ultra-genesis-studio-vol-1-iray-box-lights
I tried to render a BlueBell hair (the first color) with all presets from the iRay light pack and the result was a yellow hair. What I'm doing wrong?
Thanks
Daz 3D is part of 
Connect
DAZ Productions, Inc.
7533 S Center View Ct #4664
West Jordan, UT 84084
Licensing Agreement | Terms of Service | Privacy Policy | EULA
© 2025 Daz Productions Inc. All Rights Reserved.
Comments
You aren't doing anything wrong.
You are seeing the effect of really bright lights on a material with likely lots of specularity and probably translucency. The effects are overpowering the diffuse textures and what you are seeing is the result.
How you get the look you want is a good question. If you are not up to fixing the materials yourself, try a different preset or copy a present from a different hair prop. Aprilysh's Iray materiakls are all pretty good... that might help.
Thanks Evilded777. The lights were very bright. I feel scammed
You shouldn't.
The UltraGenesis set is very good. I can't speak for the materials on that hair prop as I don't own it. But for rendering at the default Tone Mapping settings, the Ultra Genesis lights are ok. Most light sets are designed this way. I would say it was more a chance meeting of things that weren't "exactly" designed to work together.
Hi,
Did you create a new camera and turn the headlamp off.
I don't think any light in the set is that bright, but combined with a headlamp.... it will do that.
There is also a full set of adjustments for the lights for color, temp, intensity, etc
I have this light set and this hair - Only if I render in perspective does the hair turn out like that so I am certain Traveler is correct
There are lots of Camera Presets & Environment settings in Ultra Studio so you should be able to get the look you want without to much messing around
Which lights? The light you added, or the default Headlight attached to the camera, or the default Environment light set up for a bright outdoor scene? If you didn't do anything to turn down or remove these default lights, then they would all have been blazing away into your scene at full blast.
My guess is Traveler is correct, too. I have this set and Bluebell hair and I've haven't had any problems with either. I used that same preset in this render and right out of the box got the first render with the camera with the headlamp off as it should be. Second render is with the headlamp turned on and I get the same effect you do with the hair blown out. Both hairs are the same blond in both renders. The lighting makes all the difference and that headlamp adds way too much of it. It is very easy to forget to turn that headlamp off. I've done that more times than I care to count, but, in Iray, it has to be off or you'll get unexpected results. The Ultra Genesis set is a great set of lights. And, if you use any of the cameras that come with the set, the headlamps are off by default so you don't even have to think about it. If you create a new camera, you have to remember to turn that headlamp off.
How can I turn off the headlamps?
Select the Camera...then either in the Parameters or Camera tabs, turn Headlamp from Auto to Off. (this is a per camera setting)
Or...
Render Settings > Auto Headlamp > Never. (this is a global setting)
The headlamp is the bane of my existance, LOL
I have started so many "final" renders and forgot to turn the darn thing off.
"HHHHHHEEEEEEEEAAAADDDDLLLLLLAAAAAMMMMMMMP" (Done in a Kirk yelling KAAAAHHHNNN Manner)
But yeah, I don't think you can turn it off for the perspective camera.
The Cameras in the set, as KnittingMommy said has them turned off by default.
If you create a new camera, select it in the Camera's tab, and turn headlamp off in the parameters.
(Or, if you want a little of the head on light, go like 10% intensity and leave it on.)
Sometimes that gives a nice effect. But 100% will blow out a scene.
Um... why don't you set Auto Headlamp to Never in the General Tab of the Render Settings? That's always step 1 when doing preview renders...
Thanks to all!
This is something that should be remembered; a lot of people say they "like the feel" of the Perspective camera, but don't realise that it isn't actually a Camera, it's a View, and doesn't have the full controls of a proper camera. Among other things, it's never saved in a scene, so if you've set up the perfect camera angle using Perspective, and save the scene, you can never get it back when you reload the scene.
Too funny! Yeah, been there, done that LOTS!!!
One other thing you can do is setup a default scene and have that load when you start DS. Just create a camera. Turn off the headlamp per mjc1016's instructions above. Save the scene with a name like HeadlampOff or Default. Then go to Edit>Preference> In the box that pops up, select the second option "Startup" tab at the top of the box. Check the box that says Load File, use the dropdown to 'Browse' to where your file is and select it. Choose "Accept" and now your custom scene file with the camera headlamp already off is loaded. This, of course, only has the one (or however many you setup) camera with a headlamp off. Should you create another camera, you will still need to turn that off manually.
I agree with evilded777, you should have the headlamp selected as never in the Render Settings, however, it is always good to turn that headlamp off just in case. The software isn't infallible and you never know when you might run a render and find out that that option was deselected or was ignored by some mysterious glitch. That has happened to me, at least once, that I can remember.